Mawson was sometimes reduced to crawling, and one night he discovered that the soles of his feet had completely detached from the flesh beneath. On February 8, when he staggered back to base, his features unrecognizably skeletal, the first teammate to reach him blurted out, "Which one are you? This thrilling and almost unbelievable account establishes Mawson in his rightful place as one of the greatest polar explorers and expedition leaders. It is illustrated by a trove of Frank Hurley's famous Antarctic photographs, many never before published in the United States.